在 psql 中显示查询结果时,有没有办法设置列的最大宽度?
Is there a way to set the max width of a column when displaying query results in psql?
我遇到的问题是我有一个包含 10 列的 table。其中 1 列是 HTML,因此非常长。它太长了,以至于它绕了几行并搞砸了其他有用的输出。通常,我一直在选择除那一列之外的所有列。但是,我开始加入另一个 table 并且现在有大约 20 列。
有没有办法指定最大列宽或在一定数量的字符后截断一列?
我试过了\x
。这有点帮助......但在大多数情况下,一切看起来仍然混乱。
您可以通过 \pset columns X
指定列宽
postgres=# select 'some longer text some longer text some longer text some longer text some longer text some longer text';
┌───────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ ?column? │
╞═══════════════════════════════════════════════════════════════════════════════════════════════════════╡
│ some longer text some longer text some longer text some longer text some longer text some longer text │
└───────────────────────────────────────────────────────────────────────────────────────────────────────┘
(1 row)
postgres=# \pset format wrapped
Output format is wrapped.
postgres=# \pset columns 20
Target width is 20.
postgres=# select 'some longer text some longer text some longer text some longer text some longer text some longer text';
┌──────────────────┐
│ ?column? │
╞══════════════════╡
│ some longer text…│
│… some longer tex…│
│…t some longer te…│
│…xt some longer t…│
│…ext some longer …│
│…text some longer…│
│… text │
└──────────────────┘
(1 row)
确定,所以您的寻呼机配置良好 - 设置全局变量:
export PAGER=less
export LESS='-iMSx4 -RSFX -e'
我遇到的问题是我有一个包含 10 列的 table。其中 1 列是 HTML,因此非常长。它太长了,以至于它绕了几行并搞砸了其他有用的输出。通常,我一直在选择除那一列之外的所有列。但是,我开始加入另一个 table 并且现在有大约 20 列。
有没有办法指定最大列宽或在一定数量的字符后截断一列?
我试过了\x
。这有点帮助......但在大多数情况下,一切看起来仍然混乱。
您可以通过 \pset columns X
postgres=# select 'some longer text some longer text some longer text some longer text some longer text some longer text'; ┌───────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ ?column? │ ╞═══════════════════════════════════════════════════════════════════════════════════════════════════════╡ │ some longer text some longer text some longer text some longer text some longer text some longer text │ └───────────────────────────────────────────────────────────────────────────────────────────────────────┘ (1 row) postgres=# \pset format wrapped Output format is wrapped. postgres=# \pset columns 20 Target width is 20. postgres=# select 'some longer text some longer text some longer text some longer text some longer text some longer text'; ┌──────────────────┐ │ ?column? │ ╞══════════════════╡ │ some longer text…│ │… some longer tex…│ │…t some longer te…│ │…xt some longer t…│ │…ext some longer …│ │…text some longer…│ │… text │ └──────────────────┘ (1 row)
确定,所以您的寻呼机配置良好 - 设置全局变量:
export PAGER=less export LESS='-iMSx4 -RSFX -e'